Liquid crystal display apparatus

ABSTRACT

Disclosed is an LCD apparatus including a receiving container for receiving a light guide plate and a lamp assembly, a first chassis for fixing the light guide plate and an LCD panel, and a second chassis for fixing the first chassis and the LCD panel. The receiving container and the first and second chassis are made of metal material so that the LCD apparatus may have reduced size and weight.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to an LCD (Liquid Crystal Display)apparatus, and more particularly to an LCD apparatus having metalchassis to reduce the size and weight of the LCD apparatus.

[0003] 2. Description of the Related Art

[0004] An LCD apparatus, in general, is a display apparatus fordisplaying images using liquid crystal. The LCD apparatus has advantagessuch as lighter weight and smaller size in comparison with a CRT(Cathode Ray Tube) display apparatus.

[0005] The LCD apparatus is generally divided into a liquid crystalcontrolling part for controlling the liquid crystal and a lightsupplying part for supplying light to the liquid crystal.

[0006] The liquid crystal controlling part includes an LCD panel fordisplaying images and a driving module for driving the LCD panel. TheLCD panel includes a TFT (Thin Film Transistor) substrate, liquidcrystal and a color filter substrate. The TFT substrate is a transparentglass substrate on which TFTs are disposed in association with a voltageproviding line and a first electrode. Each of the TFTs includes a gateelectrode, a channel layer, a source electrode and a drain electrode.The first electrode is made of ITO (Indium Tin Oxide) or IZO (IndiumZinc Oxide) and disposed corresponding to each of drain electrodes ofthe TFTs. The voltage providing line includes gate lines and data linesto provide a driving signal to the TFTs. The gate lines are disposedcorresponding to columns of the TFTs, and each of the gate linesprovides a gate turn-on signal to the TFTs arranged in a columndirection. The data lines are disposed corresponding to rows of theTFTs, and each of the data lines provides a data signal to the TFTsarranged in a row direction. The driving module receives an image signalgenerated from an external information-processing device and generatesthe driving signal to timely apply the driving signal to the gate anddata lines. The color filter substrate combined to the TFT substrateincludes a transparent substrate, a color filter and a second electrode.The color filter includes a red color filter, a green color filter and ablue color filter disposed on the transparent substrate in a matrixconfiguration. The second electrode made of the ITO or IZO is disposedover the transparent substrate to cover the color filter. The secondelectrode receives a predetermined reference voltage, so that anelectric field is applied between the first and second electrodes. Theliquid crystal is interposed between the color filter substrate and TFTsubstrate.

[0007] The light supplying part includes a middle receiving container, abottom receiving container, a light guide plate, a lamp assembly and anoptical sheet. The lamp assembly employs a CCFL (Cold CathodeFluorescent Lamp) for generation the light. The light guide platereceives the light from the lamp and changes optical properties andlight path of the light. The bottom receiving container provides areceiving space in which the lamp assembly and light guide plate arereceived. The optical sheet is disposed on the light guide plate andcontrols brightness distribution of the light emitted from the lightguide plate. The middle receiving container is combined to the bottomreceiving container to fix the LCD panel to the bottom receivingcontainer. The LCD panel is fixed to the middle receiving container by atop chassis combined to the middle and bottom receiving containers.

[0008] Generally, the bottom and middle receiving containers are made ofsynthetic resin using an injection-molding manner. In order to form thebottom and middle receiving containers using the injection-moldingmanner, the bottom and middle receiving containers need a thickness ofat least 0.4 mm. The bottom and middle receiving containers, generally,have a thickness of 0.4 mm at a first portion, where little strength isneeded and a thickness of 1.2 mm to 1.5 mm at a second portion wherecertain strength is necessary. Also, the bottom and middle receivingcontainers are contracted at the time of cooling melted synthetic resin,and the first and second portions of the bottom and middle receivingcontainers each have a different contractile rate. As a result, thebottom and middle receiving containers are easily distorted in amanufacturing process.

[0009] Further, the bottom and middle receiving containers made of thesynthetic resin have low heat conductivity, so that it is difficult tocontrol a light transmittance of the liquid crystal because the liquidcrystal is liquidized by heat emitted from the lamp assembly.

BRIEF SUMMARY OF THE INVENTION

[0010] The present invention provides an LCD apparatus having a reducedsize and weight.

[0011] In one aspect of the invention, there is provided an LCDapparatus comprising: a receiving container having a bottom surface anda sidewall extended from the bottom surface to provide a receivingspace; a light guide plate having a side surface corresponding to thesidewall, a light reflecting surface facing to the bottom surface, and alight emitting surface opposite to the light reflecting surface; a firstchassis outwardly combined to the sidewall of the receiving containerwhile pressing an edge portion of the light emitting surface; an LCDpanel assembly disposed on the first chassis, which is facing to thelight emitting surface; and a second chassis outwardly combined to thesidewall of the receiving container while pressing an edge portion ofthe LCD panel assembly.

[0012] According to the LCD apparatus, the receiving container forreceiving the light guide plate and lamp assembly, the first chassis forfixing the light guide plate and LCD panel, and the second chassis forfixing the first chassis and LCD panel, are made of metal material.Thus, the LCD apparatus may have a reduced size and weight and may emitheat generated from the lamp assembly.

BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and other advantages of the present invention willbecome readily apparent by reference to the following detaileddescription when considered in conjunction with the accompanyingdrawings wherein:

[0014]FIG. 1 is an exploded perspective view showing an LCD apparatusaccording to the present invention;

[0015]FIG. 2 is a perspective view showing a structure of a receivingcontainer shown in FIG. 1;

[0016]FIG. 3 is a perspective view showing a structure of a light guideplate shown in FIG. 1;

[0017]FIG. 4 is a perspective view showing a structure of a firstchassis shown in FIG. 1;

[0018]FIG. 5 is a perspective view showing a structure of an LCD panelassembly shown in FIG. 1;

[0019]FIG. 6 is a partially enlarged view of a TFT substrate of the LCDpanel according to the present invention;

[0020]FIG. 7 is a partially cut perspective view showing a structure ofa second chassis shown in FIG. 1;

[0021]FIG. 8A is a perspective view showing a structure of a lamp shownin FIG. 1;

[0022]FIG. 8B is a schematic view showing the lamp assembled with thereceiving container shown in FIG. 1;

[0023]FIG. 8C is a cross-sectional view showing an internal structure ofthe lamp shown in FIG. 8A;

[0024]FIG. 9 is a perspective view showing a structure of a firstchassis shown in FIG. 1;

[0025]FIG. 10 is a perspective view showing a structure of a reflectingplate shown in FIG. 1;

[0026]FIG. 11 is a schematic view showing a structure of anotherreflecting plate according to the present invention;

[0027]FIG. 12 is a partially enlarged view of the receiving containershown in FIG. 1;

[0028]FIG. 13 is a perspective view showing a structure of opticalsheets shown in FIG. 1;

[0029]FIG. 14 is a schematic view showing an assembled structure of theoptical sheets and the first chassis;

[0030]FIG. 15 is a perspective view showing a guide member of an LCDpanel according to the present invention;

[0031]FIG. 16 is a perspective view showing a structure of the guidemember shown in FIG. 15;

[0032]FIG. 17 is a schematic view showing an assembled structure of theguide member and the receiving container;

[0033]FIGS. 18A and 18B are schematic views showing an assembledstructure of the receiving container and the first chassis;

[0034]FIGS. 19 and 20 are schematic views showing an assembled structureof the receiving container and the second chassis; and

[0035]FIG. 21 is a schematic view showing an assembled structure of areceiving container, a first chassis and a second chassis according toanother embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[0036]FIG. 1 is an exploded perspective view showing an LCD apparatusaccording to the present invention.

[0037] Referring to FIG. 1, the LCD apparatus 1100 includes a receivingcontainer 100, a light guide plate 200, a first chassis 300, an LCDpanel assembly 400 and a second chassis 500.

[0038]FIG. 2 is a perspective view showing a structure of the receivingcontainer shown in FIG. 1.

[0039] Referring to FIG. 2, the receiving container 100 includes abottom surface 110 and first to fourth sidewalls 120, 130, 140 and 150.The bottom surface 110 has a rectangular shape and first to fourth edges112, 114, 116 and 118. The first to fourth sidewalls 120, 130, 140 and150 are extended from the first to fourth edges 112, 114, 116 and 118 ina same direction to have a same height, respectively. Accordingly, thereceiving container 100 provides a receiving space formed with thebottom surface 110 and the first to fourth sidewalls 120, 130, 140,150.

[0040]FIG. 3 is a perspective view showing a structure of the lightguide plate shown in FIG. 1.

[0041] Referring to FIG. 3, the light guide plate 200 includes a lightreflecting surface 260, a light emitting surface 270 and first to fourthside surfaces 220, 230, 240 and 250. The first to fourth side surface220, 230, 240 and 250 are disposed to face to and apart from the firstto fourth sidewalls 120, 130, 140 and 150 (referring to FIG. 2),respectively. The light reflecting surface 260 is connected with thefirst, second, third and fourth side surfaces 220, 230, 240 and 250 andfaces to the bottom surface 110 of the receiving container 100(referring to FIG. 2). The light reflecting surface 260 changes opticalproperties and light paths of light input through the first to fourthside surfaces 220, 230, 240 and 250. The light emitting surface 270 isalso connected with the first, second, third and fourth side surfaces220, 230, 240 and 250 and faces to the light reflecting surface 260. Thelight emitting surface 270 provides the light reflected from the lightreflecting surface 260 to the LCD panel assembly 400.

[0042]FIG. 4 is a perspective view showing a structure of the firstchassis shown in FIG. 1.

[0043] Referring to FIGS. 1 and 4, the first chassis 300 is disposed toprevent the light guide plate 200 from being deviated from the receivingcontainer 100 by pressing edge portions of the light guide plate 200.The first chassis 300 is combined to the first to fourth sidewalls 120,130, 140 and 150 (referring to FIG. 2) of the receiving container 100.

[0044]FIG. 5 is a perspective view showing a structure of the LCD panelassembly shown in FIG. 1.

[0045] Referring to FIG. 5, the LCD panel assembly 400 is received onthe first chassis 300 and faces to the light emitting surface 270 of thelight guide plate 200 (referring to FIG. 3). The LCD panel assembly 400includes an LCD panel 450 and a driving module 490. The LCD panel 450includes a TFT substrate 410, a liquid crystal 440 and a color filtersubstrate 420.

[0046]FIG. 6 is a partially enlarged view of the TFT substrate of theLCD panel according to the present invention.

[0047] Referring to FIG. 6, the TFT substrate 410 is a transparent glasssubstrate on which TFTs 401 each associated with a voltage providingline 404 and a first electrode 405 are disposed in a matrixconfiguration. A TFT 401 includes a gate electrode “G”, a channel layer“C”, a source electrode “S” and a drain electrode “D”. The firstelectrode 405 is made of, for example, ITO (indium tin oxide) or IZO(indium zinc oxide) and disposed to be connected with the drainelectrode “D” of the TFT 401. The voltage providing line 404 includes agate line 403 and a data line 402 to provide a driving signal to the TFT401. The gate lines 403 are disposed in a column direction correspondingto the columns of the matrix configuration of the TFTs 401. A gate line403 provides a gate turn-on signal to the TFTs 401 arranged in a columncorresponding to the gate line 403. The data lines 402 are disposed in arow direction corresponding to the rows of the matrix configuration ofthe TFTs 401. A data line 402 provides a data signal to the TFTs 401arranged in a row corresponding to the data line 402.

[0048] Referring to FIG. 5 again, the driving module 490 includes a PCB(Printed Circuit Board) 492 and a TCP (Tape Carrier Package) 494. TheTCP 494 is connected to the gate and data lines 403 and 402 (referringto FIG. 6) and the PCB 492 is connected to the TCP 494. The drivingmodule 490 receives an image signal generated from an externalinformation-processing device and generates the driving signal to timelyapply the driving signal to the gate and data lines 403 and 402.

[0049] The color filter substrate 420 combined to the TFT substrate 410includes color-filters (not shown) and a second electrode (not shown)disposed on a transparent substrate. The color filters each include ared color filter, a green color filter and a blue color filter and aredisposed on the transparent substrate in a matrix configuration. Thesecond electrode is disposed over the transparent substrate to cover thecolor filters. The second electrode receives a predetermined referencevoltage, so that an electric field is applied between the firstelectrode 405 (referring to FIG. 6) and the second electrode (notshown). The liquid crystal 440 is interposed between the color filtersubstrate 420 and the TFT substrate 410.

[0050]FIG. 7 is a partially cut perspective view showing a structure ofthe second chassis shown in FIG. 1.

[0051] Referring to FIGS. 1 and 7, the second chassis 500 is disposed topress edge portions of the LCD panel 400 and is outwardly combined tothe first to fourth sidewalls 120, 130, 140 and 150 of the receivingcontainer 100 (referring to FIG. 2).

[0052] Referring again to FIG. 1, as an exemplary embodiment of thepresent invention, the receiving container 100, first chassis 300 andsecond chassis 500 are manufactured by pressing plates having a firstthickness, a second thickness and a third thickness, respectively. Thefirst thickness, second thickness and third thickness each are, forexample, from about 0.1 mm to about 0.5 mm.

[0053] The receiving container 100, first chassis 300 and second chassis500 are, for example, made of metal material. Thus, although thereceiving container 100, first chassis 300 and second chassis 500 havethe thickness of about 0.1 mm to about 0.5 mm, they may have strengthenough to endure an externally applied impact. Also, the receivingcontainer 100, first chassis 300 and second chassis 500 may be made ofmetal material such as aluminum or aluminum alloy, so that the LCDapparatus 1100 may have the strength while the entire thickness thereofis reduced.

[0054] In case that a receiving container and a first chassis are madeof synthetic resin, the receiving container and first chassis each havea thickness in the range of 0.4 mm to 1.2˜1.5 mm. In contrast, since thereceiving container 100 and first chassis 300 are made of the metalmaterial in the present invention, the receiving container 100 and firstchassis 300 may have the thickness of about 0.1 mm to about 0.5 mm. Thatis, in the LCD apparatus 1100 the thickness of each of the receivingcontainer 100 and first chassis 300 may be reduced by about 0.3 mm toabout 0.7-1.0 mm, so that the entire thickness of the LCD apparatus 1100is reduced by about 0.6 mm to about 2 mm.

[0055] In order to further reduce the thickness of the LCD apparatus1100, the second thickness of the first chassis 300 may be thinner thanthe first thickness of the receiving container 100 and the thirdthickness of the second chassis 500. For example, the first thickness ofthe receiving container 100 is in the range of about 0.2 mm to about 0.5mm, the third thickness of the second chassis 500 is in the range ofabout 0.2 mm to about 0.5 mm, and the second thickness of the firstchassis 300 is in the range of about 0.1 mm to about 0.2 mm. This isbecause the first chassis 300 is little subject to an external force oran external impact in comparison with the receiving container 100 andthe second chassis 500.

[0056] As another exemplary embodiment, the first chassis 300 may beformed to have a second thickness in the range of about 0.4 mm to about1.5 mm using the synthetic resin, and the receiving container 100 andsecond chassis 500 is formed to have a first and a second thickness inthe range of about 0.1 mm to about 0.5 mm using the metal material,respectively. In this case, the entire thickness of the LCD apparatus1100 is reduced in comparison with the case that the receiving container100, first chassis 300 and second chassis 500 are made of the syntheticresin.

[0057] The LCD apparatus 1100 needs light to display images thereon.

[0058]FIG. 8A is a perspective view showing a structure of a lamp shownin FIG. 1. FIG. 8B is a schematic view showing the lamp assembled withthe receiving container shown in FIG. 1. FIG. 8C is a cross-sectionalview of the lamp shown in FIG. 8A.

[0059] Referring to FIGS. 8Ato 8C, the lamp 600 includes a lamp tube610, first and second electrodes 611 and 612 and first and second lampwires 614 and 615.

[0060] The lamp tube 610 has an L shape and includes a transparent tube610 a, a fluorescent material 610 b deposited on an inner wall of thetube 610 a and a discharge gas 610 c injected inside the tube 610 a.

[0061] The first and second electrodes 611 and 612 are disposed atopposite end portions, respectively, inside the tube 610 a. The firstand second electrodes 611 and 612 receive a discharge voltage appliedthrough the first and second lamp wires 614 and 615.

[0062] The first and second lamp wires 614 and 615 are connected to thefirst and second electrodes 611 and 612, respectively. The first andsecond lamp wires 614 and 615 provide the discharge voltage generatedfrom an external power supply device (not shown) to the first and secondelectrodes 611 and 612. The LCD apparatus 1100 may further includeanother lamp such as the lamp 600, so that there are two lamps betweenthe first to fourth side surfaces 220, 230, 240 and 250 of the lightguide plate 200 and the first to fourth sidewalls 120, 130, 140 and 150of the receiving container 100 (referring to FIGS. 2 and 3). The lamp600 is provided with a lamp holder 620 disposed at a bending portionthereof to fix the lamp 600 to the receiving container 100 and preventthe lamp 600 from being damaged. The first lamp wire 614, generally, hasa length longer than that of the second lamp wire 615 to which a lowvoltage of the discharge voltage is applied.

[0063]FIG. 9 is a perspective view showing a structure of a firstchassis having a lamp wire receiving member according to the presentinvention.

[0064] Referring to FIG. 9, the first chassis 300 is provided with alamp wire receiving member 380 for fixing the first lamp wire 614 to apredetermined position. The lamp wire receiving member 380 is disposedon the first chassis 300 in such a manner as not to interfere with theLCD panel assembly 400 disposed on the first chassis 300.

[0065] The lamp wire receiving member 380 may be made of, for example,synthetic resin. The lamp wire receiving member 380 includes a lamp wirereceiving groove 382 disposed thereof. The lamp wire receiving groove382 is formed in a direction parallel to a direction that guides thefirst lamp wire 614.

[0066]FIG. 10 is a perspective view showing a structure of a reflectingplate shown in FIG. 1.

[0067] Referring to FIGS. 1 and 10, a reflecting plate 700 includes afirst reflecting surface 710 and first to fourth side reflectingsurfaces 720, 730, 740 and 750. The reflecting plate 700 may be made of,for example, synthetic resin.

[0068] The first reflecting surface 710 is disposed between the bottomsurface 110 of the receiving container 100 and the light reflectingsurface 260 of the light guide plate 200. The first reflecting surface710 reflects the light leaked from the light guide plate 200 through thelight reflecting surface 260 to the light guide plate 200.

[0069] The first to fourth side reflecting surfaces 720, 730, 740 and750 are respectively disposed between the first to fourth sidewalls120,130, 140 and 150 of the receiving container 100 and the lamp 600.The first to fourth side reflecting surfaces 720, 730, 740 and 750reflect the light emitted from the lamp 600 to the first to fourth sidesurfaces 220, 230, 240 and 250 of the light guide plate 200,respectively. That is, the first to fourth side reflecting surfaces 720,730, 740 and 750 of the reflecting plate 700 perform a role of a lampreflector.

[0070] As an exemplary embodiment, the first reflecting surface 710 andthe first to fourth side reflecting surfaces 720, 730, 740 and 750 aredisposed separately. In other words, the first reflecting surface 710 isadhered to the bottom surface 110 of the receiving container 100, andthe first to fourth side reflecting surfaces 720, 730, 740 and 750 areadhered to the first to fourth sidewalls 120, 130, 140 and 150,respectively, of the receiving container 100.

[0071] In the present invention, the reflecting plate may be removedbecause the receiving container 100 and the first chassis 300 are madeof metal material having a high light reflectance.

[0072]FIG. 11 is a schematic view showing a structure of a reflectingplate according to another embodiment of the present invention.

[0073] Referring to FIG. 11, the first chassis 300 is provided with aseparated reflecting plate 760. The separated reflecting plate 760 isdisposed under the first chassis 300 to cover an upper portion of thelamp 600, thereby increasing the light efficiency.

[0074]FIG. 12 is a partially enlarged view of the receiving containershown in FIGS. 1 and 2.

[0075] Referring to FIG. 12, the receiving container 100 furtherincludes a fixing boss 160 disposed on the bottom surface 110. Thefixing boss 160 prevents the light guide plate 200 and lamp 600 frombeing moved in the receiving container 100. For example, the fixing boss160 is disposed at each corner portion of the receiving container 100.In this case, since the bottom surface 110 of the receiving container100 has four corner portions, four fixing bosses are disposed on thefour corner portions, respectively.

[0076] The lamp holder 620 is inserted between the fixing boss 160 andthe receiving container 100, and the light guide plate 200 is disposedinwardly with respect to the four fixing bosses in the receivingcontainer 100. The light guide plate 200 is provided with an engagingportion 260. The engaging portion 260 is formed by cutting four cornerportions of the light guide plate 200, respectively. The engagingportion 260 is engaged to the fixing boss 160, so that the light guideplate 200 is fixed to the receiving container 100.

[0077]FIG. 13 is a perspective view showing a structure of opticalsheets shown in FIG. 1.

[0078] Referring to FIGS. 1 and 13, the optical sheets 800 are disposedon the light emitting surface 270 of the light guide plate 200. Theoptical sheets 800 include a diffusing sheet 810 having a diffusingsheet body 812 and a diffusing sheet engaging protrusion 814 and a prismsheet 820 having a prism sheet body 822 and a prism sheet engagingprotrusion 824. In the present invention, as an exemplary embodiment,the optical sheets 800 include two prism sheets.

[0079] The diffusing sheet body 812 diffuses the light emitted from thelight emitting surface 270 to increase uniformity of the brightnessthereof. The diffusing sheet engaging protrusion 814 is extended from aselected portion at an edge of the diffusing sheet body 812 and servesto prevent the diffusion sheet body 812 from being moved. For example,the diffusing sheet body 812 has four diffusing sheet engagingprotrusions formed at the opposite edges of the diffusing sheet body812, as shown in FIG. 13.

[0080] The prism sheet body 822 is disposed facing to the diffusingsheet body 812. The prism sheet body 822 has a prism shape to reset thedirection of the light diffused by the diffusing sheet 810. The prismsheet engaging protrusion 824 is extended from a selected portion at anedge of the prism sheet body 822 and serves to prevent the prism sheetbody 822 from being moved. As shown in FIG. 13, the prism sheet body 822may have four prism sheet engaging protrusions formed at the oppositeedges of the prism sheet body 822. The prism sheet engaging protrusion824, generally, is provided corresponding to the diffusing sheetengaging protrusion 814.

[0081]FIG. 14 is a schematic view showing an assembled structure of theoptical sheets and the first chassis.

[0082] Referring to FIG. 14, the diffusing sheet engaging protrusion 814and the prism sheet engaging protrusion 824 are fixed to the firstchassis 300. The first chassis 300 is provided with an engaging recess310 corresponding to the diffusing sheet engaging protrusion 814 and theprism sheet engaging protrusion 824. The first chassis 300 is furtherprovided with a fixing member 320 for fixing the diffusing sheet 810 andthe prism sheet 820 to the first chassis 300. The fixing member 320 isdisposed on the first chassis 300 to cover the diffusing sheet engagingprotrusion 814 and the prism sheet engaging protrusion 824 inserted intothe engaging recess 310, so that the diffusing sheet engaging protrusion814 and the prism sheet engaging protrusion 824 are not deviated fromthe engaging recess 310. For example, the fixing member 320 is a bandstrip having an adhesive bottom surface.

[0083]FIG. 15 is a perspective view showing a guide member of an LCDpanel according to the present invention.

[0084] Referring to FIG. 15, the LCD panel assembly 400 is disposed onthe first chassis 300 and fixed to the first chassis 300 by the secondchassis 200 that is combined to the receiving container 100. In case ofreceiving an impact or damage onto the LCD apparatus 1100, the LCD panelassembly 400 may be moved. In order to prevent the LCD panel assembly400 from being moved, the first chassis 300 may further include a guidemember 900. For example, the guide member 900 is disposed at each cornerportion of the first chassis 300 to guide the corner portions of the LCDpanel assembly 400.

[0085]FIG. 16 is a perspective view showing a structure of the guidemember shown in FIG. 15.

[0086] Referring to FIG. 16, the guide member 900 includes a first guidebody 910, a second guide body 920 and a connection body 930.

[0087] The first guide body 910 having an L shape. The first guide body910 is provided with a first receiving groove 912 a and a secondreceiving groove 912 b for receiving the first and second lamp wires 614and 615 of the lamp 600, respectively. The second receiving groove 912 bis provided with a first engaging portion 914. The second guide body 920is provided with a second engaging portion 922. The first engagingportion 914 is, for example, a screw engaging hole for engaging a screwto fix the first guide body 910 onto the first chassis 300.

[0088] The connection body 930 is connected with the first and secondguide bodies 910 and 920. The connection body 930 has a lengthappropriate to allow the first and second guide bodies 910 and 920 topress the first chassis 300 and the rear surface of the receivingcontainer 100, respectively.

[0089]FIG. 17 is a schematic view showing an assembled structure of theguide member and the receiving container.

[0090] Referring to FIG. 17, in order to prevent the guide member 900from being deviated from the receiving container 100, a portion of thebottom surface 110 of the receiving container 100 corresponding to thesecond guide body 920 is partially cut and is engaged into the secondengaging portion 922.

[0091] Referring to FIGS. 4 and 15, the first chassis 300 furtherincludes a supporting portion 350 to support the second chassis 350. Thesupporting portion 350 is formed by partially protruding or cutting aportion on the first chassis 300 toward the second chassis 500.

[0092] The supporting portion 350 includes a first supporting portion330 and a second supporting portion 340 having shapes different to eachother. For example, the first supporting portion 330 is formed bypartially cutting the first chassis 300 and bending the cut portion in atriangle shape and is disposed between the TCPs 494. The secondsupporting portion 340 is disposed on another portion of the firstchassis 300, where the first supporting portion 330 is not disposed. Thesecond supporting portion 340 is formed by partially pressing the firstchassis 300 toward the second chassis 500. The second supporting portion340 may have a surface area larger than that of the first supportingportion 330.

[0093] Hereinafter, an assembled structure of the receiving container100, first chassis 300 and second chassis 500 will be described.

[0094] Referring to FIGS. 2 and 4, the first to fourth sidewalls 120,130, 140 and 150 of the receiving container 100 are provided with afirst engaging hole 170, and the first chassis 300 is provided with afirst combining portion 360 corresponding to the first engaging hole170.

[0095]FIGS. 18A and 18B are schematic views showing an assembledstructure of the receiving container 100 and the first chassis 300.

[0096] Referring to FIGS. 18A and 18B, each sidewall of the receivingcontainer 100 has an engaging portion 175 at the position of the firstengaging hole 170. In the engaging portion 175, the side and bottomedges are cut and the top edge is bent to be protruded outward withrespect to the receiving space. The first chassis 300 has the firstcombining portion 360 of which side and top edges are cut and bottomedge is bent to be protruded inward with respect to the receiving space.Thus, the engaging portion 175 and the first combining portion 360 areengaged to each other at the time of combining the receiving container100 and the first chassis 300 together.

[0097] Referring again to FIG. 2, the receiving container 100 mayfurther include a second combining portion 180 separated from the firstengaging hole 170 in a predetermined distance. The second combiningportion 180 is outwardly protruded after cutting a portion of the firstand third sidewalls 120 and 140. The thickness of the protruded portionof the second combining portion 180 is identical to that of the firstchassis 300 combined to the receiving container 100, so that the secondcombining portion 180 and the first chassis are disposed on a sameplanar level. The second combining portion 180 is provided with a secondengaging hole 185. Also, a portion facing the second combining portion180 of the first chassis 300 is open to expose the second combiningportion 180 and combine the second combining portion 180 to the secondchassis 500.

[0098] Referring again to FIG. 7, the second chassis 500 may furtherinclude a third combining portion 510. The third combining portion 510of the second chassis 500 is combined to the second engaging hole 185 ofthe receiving container 100 and formed by cutting a selected portion ofthe second chassis 500 and inwardly bending the cut portion.

[0099] Referring to FIG. 19, the receiving container 100 is providedwith a second chassis engaging protrusion 190 disposed on a portion thatthe bottom surface 110 is in contact with first, second, third or fourthsidewalls 120, 130, 140 and 150. The second chassis engaging protrusion190 makes the second chassis 500 to be strongly combined to thereceiving container 100.

[0100] Referring to FIGS. 7 and 19, the second chassis 500 may furtherinclude an engaging surface 520 engaged to the second chassis engagingprotrusion 190. When the second chassis 500 is assembled after engagingthe engaging surface 520 of the second chassis 500 to the second chassisengaging protrusion 190, the third combining portion 510 facing thesecond chassis engaging protrusion 190 of the second chassis 500 isengaged to the second engaging hole 185 of the receiving container 100.

[0101] In another aspect, the receiving container 100 may be formed tohave another structure.

[0102] Referring to FIGS. 2 and 20, the first to fourth sidewalls 120,130, 140 and 150 are extended from edge portions of the bottom surface110 of the receiving container 100. The second and fourth sidewalls 130and 150 facing to each other are outwardly extended in a directionparallel to the bottom surface 110. The extended portions of the secondand fourth sidewalls 130 and 150 are bent to a direction perpendicularto the bottom surface 110 and extended in a predetermined length.

[0103] Accordingly, the receiving container 100 may provide thereceiving space on the bottom surface 100 and simultaneously provideengaging spaces 155 disposed adjacent to the second and fourth sidewalls130 and 150, respectively. The second and fourth sidewalls 130 and 150are provided with a first combining hole 158, and the first chassis 300is provided with a second combining hole 370 corresponding to the firstcombining hole 158 as shown in FIGS. 2 and 4. Also, the second chassis500 may include a tapping portion 530 inserted into the first and secondcombining holes 158 and 370 to cover inner surfaces of the first andsecond combining holes 158 as shown in FIG. 21.

[0104] According to the LCD apparatus, the receiving container forreceiving the light guide plate and lamp assembly, the first chassis forfixing the light guide plate and LCD panel, and the second chassis forfixing the first chassis and LCD panel, are made of metal material.Thus, the LCD apparatus may have a reduced size (or thickness) andweight and readily emit heat generated from the lamp assembly.

[0105] Although the exemplary embodiments of the present invention havebeen described, it is understood that the present invention should notbe limited to these exemplary embodiments but various changes andmodifications can be made by one ordinary skilled in the art within thespirit and scope of the present invention as hereinafter claimed.

What is claimed is:
 1. An LCD apparatus comprising: a receivingcontainer having a bottom surface and a sidewall extended from thebottom surface to provide a receiving space; a light guide plate havinga side surface corresponding to the sidewall, a light reflecting surfacefacing to the bottom surface of the receiving container, and a lightemitting surface opposite to the light reflecting surface; a firstchassis outwardly combined to the sidewall of the receiving container,the first chassis pressing an edge portion of the light emittingsurface; an LCD panel assembly disposed on the first chassis and facingto the light emitting surface; and a second chassis outwardly combinedto the sidewall of the receiving container, the second chassis pressingan edge portion of the LCD panel assembly.
 2. The LCD apparatus of claim1, wherein the receiving container, first chassis and second chassishave a thickness from about 0.1 mm to about 0.5 mm, respectively.
 3. TheLCD apparatus of claim 1, wherein the receiving container has athickness from about 0.2 mm to about 0.5 mm, the first chassis has athickness from about 0.1 mm to about 0.2 mm, and the second chassis hasa thickness from about 0.2 mm to about 0.5 mm.
 4. The LCD apparatus ofclaim 1, wherein the receiving container, the first chassis and thesecond chassis are made of a metal material.
 5. The LCD apparatus ofclaim 4, wherein the metal material is aluminum or aluminum alloy. 6.The LCD apparatus of claim 1, further comprising: a lamp tube having anL shape disposed between the sidewall of the receiving container and theside surface of the light guide plate; a first lamp wire connected to afirst electrode of the lamp tube; and a second lamp wire connected to asecond electrode of the lamp tube, the second electrode being separatedfrom the first electrode.
 7. The LCD apparatus of claim 6, furthercomprising a receiving member having a receiving groove for receivingthe second lamp wire longer than the first lamp wire, the receivingmember being disposed on the first chassis.
 8. The LCD apparatus ofclaim 6, further comprising a reflecting plate having a first reflectingplate disposed between the sidewall of the receiving container and theside surface of the light guide plate, for reflecting light from thelamp tube to the side surface, and a second reflecting plate extendedfrom the first reflecting plate and disposed between the lightreflecting surface of the light guide plate and the bottom surface ofthe receiving container, for reflecting light leaked from the lightreflecting surface.
 9. The LCD apparatus of claim 6, further comprisinga reflecting plate disposed inside the first chassis facing to thereceiving container, for reflecting light from an upper portion of thelamp tube.
 10. The LCD apparatus of claim 6, wherein the receivingcontainer further comprises a fixing boss disposed at a corner portionof the bottom surface, and the light guide plate further comprises anengaging portion to be engaged with the fixing boss.
 11. The LCDapparatus of claim 10, further including a lamp holder disposed at abending portion of the lamp tube, wherein the fixing boss is disposedbetween the lamp holder and the engaging portion of the light guideplate.
 12. The LCD apparatus of claim 1, further comprising an opticalsheet having a body disposed on the light emitting surface of the lightguide plate and a protrusion extended from an edge of the body anddisposed in association with the first chassis.
 13. The LCD apparatus ofclaim 12, wherein the first chassis further comprises a receivingportion for receiving the protrusion, and a fixing member is appliedonto the first chassis to prevent the protrusion from being deviatedfrom the receiving portion.
 14. The LCD apparatus of claim 13, whereinthe fixing member is a band strip having an adhesive bottom surface tocover the protrusion and the receiving portion.
 15. The LCD apparatus ofclaim 1, wherein the first chassis further comprises a guide member forguide the LCD panel assembly and fixing the LCD panel assembly onto thefirst chassis.
 16. The LCD apparatus of claim 15, wherein the guidemember comprises: a first guide body disposed on a corner portion of thefirst chassis; a second guide body outwardly disposed on a cornerportion of the bottom surface of the receiving container; and aconnection body for connecting the first and second guide bodies. 17.The LCD apparatus of claim 16, wherein the first guide body includes alamp wire receiving groove for receiving a wire connected to a lamp foremitting light, and a screw engaging hole for engaging a screw to fixthe first guide body to the first chassis.
 18. The LCD apparatus ofclaim 16, wherein the second guide body includes a body engaging hole,and the bottom surface of the receiving container is provided with abending portion inserted into the body engaging hole, the bendingportion being formed by partially cutting the bottom surface.
 19. TheLCD apparatus of claim 1, wherein the first chassis further comprises asupporting portion protruded toward the second chassis.
 20. The LCDapparatus of claim 19, wherein the supporting portion is formed bypartially cutting the first chassis and bending the cut portion towardthe second chassis.
 21. The LCD apparatus of claim 19, wherein thesupporting portion is formed by partially protruding the first chassisin a predetermined length that comes in contact with the second chassis.22. The LCD apparatus of claim 1, wherein the sidewall of the receivingcontainer includes a first engaging hole formed by partially cutting thesidewall and bending the cut portion of the sidewall to be protrudedoutward with respect to the receiving space, and the first chassisincludes a first engaging portion formed by partially cutting the firstchassis and bending the cut portion of the first chassis to be protrudedinward with respect to the receiving space, the first engaging portionbeing engaged to the first engaging hole.
 23. The LCD apparatus of claim22, wherein the sidewall of the receiving container includes a secondengaging portion having a second engaging hole by partially cutting thesidewall and outwardly protruding the cut portion from the receivingspace, the first chassis includes an opening to expose the secondengaging portion, and the second chassis includes a third engagingportion engaged to the second engaging hole.
 24. The LCD apparatus ofclaim 1, wherein the receiving container further comprises an engagingprotrusion disposed between a sidewall and the bottom surface of thereceiving container in a direction parallel to the bottom surface, andthe second chassis further comprises an engaging surface engaged to theengaging protrusion.
 25. The LCD apparatus of claim 1, wherein thesidewall of the receiving container comprises first and second sidewallsextended from opposite end portions, respectively, of the bottomsurface, and third and fourth sidewalls extended from another oppositeend portions, respectively, of the bottom surface, the third and fourthsidewalls being outwardly bent with respect to the receiving space toprovide an engaging space.
 26. The LCD apparatus of claim 25, whereinthe third and fourth sidewalls each include a first engaging hole toexpose the engaging space, the first chassis includes a second engaginghole, and the second chassis further comprises a tapping portioninserted into the first and second engaging holes.
 27. An LCD apparatuscomprising: a first metal chassis having a bottom surface and a sidewallextended from the bottom surface to provide a receiving space; a lightguide plate having a side surface for receiving light and being disposedcorresponding to the sidewall, a light reflecting surface facing to thebottom surface, and a light emitting surface for emitting the light andbeing opposite to the light reflecting surface; a second metal chassisoutwardly combined to the sidewall of the first metal chassis, thesecond metal chassis pressing an edge portion of the light emittingsurface; an LCD panel assembly disposed on the first chassis and facingto the light emitting surface; and a third metal chassis outwardlycombined to the sidewall of the first metal chassis, the third metalchassis pressing an edge portion of the LCD panel assembly.
 28. The LCDapparatus of claim 27, wherein the first metal chassis comprises foursidewalls for providing the receiving space in which a lamp having an Lshape is disposed such that two adjacent sidewalls of the four sidewallsare disposed to surround the L shape lamp.
 29. The LCD apparatus ofclaim 27, wherein the second chassis comprises a supporting portion forsupporting the third chassis, the supporting portion being formed bypartially cutting and bending the second chassis.
 30. The LCD apparatusof claim 27, further comprising a guide member for guiding the LCD panelassembly to a receiving position thereof, the guide member beingdisposed at corner portions of the first metal chassis combined to thesecond metal chassis.